The Laotian writing characterised for its circular form that came from the writing method its support. In fact signs were designed above sheets of Latania (from the palm tree family), true a pointer guided by a plain ruler, being after reunited in form of a volume. The Laotian writing is from the left to the right, as the Siames of what is to parent. The orthography is object of two conceptions in form of making dominate the etymological form about the phonetic principal.